setup parameters MOVD cnt+112(FP), R8 XC $12, (R1), (R1) // reserved MVC $4, 12(R8), 12(R1) // set chain value MVC $16, (R8), 64(R1) // set initial counter value XC $32, 16(R1), 16(R1) // set hash subkey and tag SLD $3, R7, R12 MOVD R12, 48(R1) // set total AAD length SLD $3, R5, R12 MOVD R12, 56(R1) // set total plaintext/ciphertext length LMG key+8(FP), R8, R9 // R8=base R9=len MVC $16, (R8), 80(R1) // set key CMPBEQ R9, $16, kma MVC $8, 16(R8), 96(R1) CMPBEQ R9, $24, kma MVC $8, 24(R8), 104(R1) kma:...